package com.uinnova.springboot.mail.service.Impl;

import com.uinnova.springboot.mail.service.MailService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;

import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.io.File;

/*
 *@author 王刚
 *@date 2019-01-16 20:21
 *
 */
@Service
@Slf4j

public class MailServiceImpl implements  MailService{
    /*
    *springboot自带的JavaMailSender 邮件发送接口
    */
    @Autowired
    private JavaMailSender mailSender;

    @Value("$(mail.fromMail.addr)")
    private String from;

    /*
    *发送简单邮件
    */

    public void sendSimpleMail(String to, String subject, String content) {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom(from);
        message.setTo(to);
        message.setSubject(subject);
        message.setText(content);
        try {
            mailSender.send(message);
            log.info("简单邮箱已经发送");
        }catch (Exception e){
            log.error("发送简单邮件时发生异常",e);
        }
    }

    /*
    *发送html邮箱
    */

    public void sendHtmlMail(String to, String subject, String content) {

        /*
        *MimeMessage继承message类
        */
        MimeMessage message = mailSender.createMimeMessage();
        try {
            MimeMessageHelper helper = new MimeMessageHelper(message,true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            /*
            *??????
            */
            helper.setText(content,true);
            mailSender.send(message);
            log.info("html邮件发送成功");
        } catch (MessagingException e) {
            log.error("发送html邮件时发生异常",e);
        }

    }

    /*
    *发送带附件的邮件
    */

    public void sendAttachmentsMail(String to, String subject, String content, String filePath) {

        MimeMessage message = mailSender.createMimeMessage();
        try {
            MimeMessageHelper helper = new MimeMessageHelper(message,true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content,true);

            /*
            *根据文件路径获取文件和文件路径a
            * fileSystemResource 文件系统资源
            */
            FileSystemResource file = new FileSystemResource(new File(filePath));
            /*
            *lastIndexOf从后往前找文件分割器，  subString？？？？？？？？
            */

            String fileName = filePath.substring(filePath.lastIndexOf(File.separator));

            helper.addAttachment(fileName,file);
            mailSender.send(message);
            log.info("带附件的邮件已经发送完毕");

        } catch (MessagingException e) {
            log.error("带附件的邮件发送时发生异常",e);
        }

    }


    public void sendInlineResourceMail(String to, String subject, String content, String resPath, String resId) {

        MimeMessage message = mailSender.createMimeMessage();

        try {
            MimeMessageHelper helper = new MimeMessageHelper(message,true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content,true);
            FileSystemResource res = new FileSystemResource(new File(resPath));
            helper.addInline(resId,res);

            mailSender.send(message);
            log.info("嵌入静态资源的邮件已经发送");

        } catch (MessagingException e) {
            log.error("潜入静态资源的邮件发送时后发生异常",e);
        }

    }
}
